Entity

Time filter

Source Type


Hu X.,Huazhong University of Science and Technology | Hu X.,Key Laboratory of Ministry of Education for Image Processing and Intelligent Control | Xiong W.,Huazhong University of Science and Technology | Li W.,Huazhong University of Science and Technology | Ke L.,Huazhong University of Science and Technology
Chinese Control Conference, CCC | Year: 2015

The rapid progress in the research and development of electronics, sensing, signal processing, and communication networks has significantly advanced the state of applications of intelligent transportation systems (ITS). However, efficient and low-cost methods for gathering information in large-scale roads are lacking. Consequently, wireless sensor network (WSN) technologies that are low cost, low power, and self-configuring are a key function in ITS. The current state of the art of application scenarios of WSNs for urban transportation is captured in this paper, where solutions are discussed under their related application schemes. This paper also points out the potential application scenarios and design requirements of WSN for urban transportation. © 2015 Technical Committee on Control Theory, Chinese Association of Automation. Source


Xiong W.,Huazhong University of Science and Technology | Hu X.,Huazhong University of Science and Technology | Hu X.,Key Laboratory of Ministry of Education for Image Processing and Intelligent Control | Wang B.,Huazhong University of Science and Technology | Fang J.,Huazhong University of Science and Technology
2014 International Conference on Connected Vehicles and Expo, ICCVE 2014 - Proceedings | Year: 2014

In Intelligent Transport System (ITS) there is a new kind of ad hoc network: Vehicular Ad-hoc Networks (VANET). In VANET, vehicles get useful information by communicating with each other or with a roadside unit. The location information is important in VANET. It is easy to obtain the locations of vehicle by GPS technology. However, there still are some unexpected problems such as not always being in signal coverage or not being strong enough for some applications. It is necessary to develop additional localization techniques to overcome GPS limitations. In this paper, we discuss localization techniques via V2V and V2R communications in VANET when there is no available GPS information, design a dynamic positioning system based on IEEE802.11p and IEEE1609 standards, and simulate positioning algorithms of DV-Hop, RSSI and MDS-MAP. © 2014 IEEE. Source


Hu X.,Huazhong University of Science and Technology | Hu X.,Key Laboratory of Ministry of Education for Image Processing and Intelligent Control | Fang J.,Huazhong University of Science and Technology | Xiong W.,Huazhong University of Science and Technology
2014 International Conference on Connected Vehicles and Expo, ICCVE 2014 - Proceedings | Year: 2014

A mathematical model is introduced for the IEEE 802.15.4 with unslotted CSMA/CA for mobile vehicle. We use the M/G/l queuing theory to model the mechnism. Our analysis results show the influence of the vehicle speed and the optimum application scope of IEEE 802.15.4 in ITS. © 2014 IEEE. Source


Wang G.,Huazhong University of Science and Technology | Wang G.,Key Laboratory of Ministry of Education for Image Processing and Intelligent Control | Shen Y.,Huazhong University of Science and Technology | Shen Y.,Key Laboratory of Ministry of Education for Image Processing and Intelligent Control | And 2 more authors.
Chinese Physics B | Year: 2013

This paper is concerned with the exponential synchronization problem of coupled memristive neural networks. In contrast to general neural networks, memristive neural networks exhibit state-dependent switching behaviors due to the physical properties of memristors. Under a mild topology condition, it is proved that a small fraction of controlled subsystems can efficiently synchronize the coupled systems. The pinned subsystems are identified via a search algorithm. Moreover, the information exchange network needs not to be undirected or strongly connected. Finally, two numerical simulations are performed to verify the usefulness and effectiveness of our results. © 2013 Chinese Physical Society and IOP Publishing Ltd. Source


Huang S.,Huazhong University of Science and Technology | Huang S.,Key Laboratory of Ministry of Education for Image Processing and Intelligent Control | Zhou C.-J.,Huazhong University of Science and Technology | Zhou C.-J.,Key Laboratory of Ministry of Education for Image Processing and Intelligent Control | And 3 more authors.
International Journal of Automation and Computing | Year: 2015

Cyber-physical systems (CPSs) are integrations of networks, computation and physical processes, where embedded computing devices continually sense, monitor, and control the physical processes through networks. Networked industrial processes combining internet, real-time computer control systems and industrial processes together are typical CPSs. With the increasingly frequent cyber-attack, security issues have gradually become key problems for CPSs. In this paper, a cyber-physical system security protection approach for networked industrial processes, i.e., industrial CPSs, is proposed. In this approach, attacks are handled layer by layer from general information technology (IT) security protection, to active protection, then to intrusion tolerance and physical security protection. The intrusion tolerance implemented in real-time control systems is the most critical layer because the real time control system directly affects the physical layer. This novel intrusion tolerance scheme with a closed loop defense framework takes into account the special requirements of industrial CPSs. To illustrate the effectiveness of the CPS security protection approach, a networked water level control system is described as a case study in the architecture analysis and design language (AADL) environment. Simulation results show that 3 types of injected attacks can be quickly defended by using the proposed protection approach. © 2015, Institute of Automation, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg. Source

Discover hidden collaborations